罕见双重移植手术:美国一男子得到新的脸和双手

smile –v. to turn up the corners of your mouth in an expression of happiness or pleasure

motivation –n. the act or process of giving someone a reason to do something

surgery –n. a medical operation

phenomenal –adj. very good or great; impressive

rehabilitation –n. the process of bringing a person back to a healthy condition after an illness or health problem